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(4 posts)

I have upgrade to Plasma Desktop (KDE5). For high resolution desktop there is the option "Force Font DPI" in the KCM font control panel. It works nicely, if the corresponding user is logged in. How do I set the same option globally such that also the login screen (SDDM) respects this option if no user is logged in?

The per-user config file is ~/.kde/share/config/kcmfonts and looks like

has not the same effect as "forceFontDPI". "forceFontDPI" only changes the DPI that is used to calculate how many pixels a certain font height has, but forceFontDPI keeps the screen resolution unaffected otherwise.

otherwise. The latter should stay as it is, such that for example a DIN-A4 page still has the size of an actual DIN-A4 page if zoomed to 100%. You do not get this behaviour, if the overall DPI is set via xrandr.

Interestingly, sddm takes the ForceFontDPI setting into consideration if sddm is used a lock screen while a user is logged in (and the user has ForceFontDPI in its user profile). How do you explain the tip from the link I gave in the first post?